When I lived in Caulfield, there was a Fire Station along North Road (Ormond) around 1999 / 2000 and I saw a 260z exactly like this parked there. I guess it was owned by a Fire Fighter?
https://www.google.com.au/maps/uv?hl=en&pb=!1s0x6ad669131ecbfb87:0xf1c7a840d18a7848!2m22!2m2!1i80!2i80!3m1!2i20!16m16!1b1!2m2!1m1!1e1!2m2!1m1!1e3!2m2!1m1!1e5!2m2!1m1!1e4!2m2!1m1!1e6!3m1!7e115!4s/maps/place/Ormond%2BFire%2BStation/@-37.9020522,145.0256025,3a,75y,12.86h,90t/data%3D*213m4*211e1*213m2*211sb5G3rd6eW27N561bZVuw_A*212e0*214m2*213m1*211s0x6ad669131ecbfb87:0xf1c7a840d18a7848!5sOrmond+Fire+Station+-+Google+Search&imagekey=!1e2!2sb5G3rd6eW27N561bZVuw_A&sa=X&ved=0ahUKEwiM6ZvxyovbAhUBxLwKHfP9DEkQpx8ImAEwDg
I recall stopping by 1 day to look at it and seeing everything in good condition and original and thinking wow!
I wonder if it's the same car?